6th March 2024

You are asked to see a 4-year-old girl in clinic who has been having syncopal episodes especially when she becomes emotional or is very active.

You are asked to see a 4-year-old girl in clinic who has been having syncopal episodes especially when she becomes emotional or is very active. Her mother is present and helps communicate with the patient using sign language, as she was born deaf. ECG demonstrates a prolonged corrected QT interval. What is the likely underlying diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.